26Engine control systemEMU26803Alert systemNOTICEECM00091Do not continue to operate the engine if aalert device has activated. Consult yourYamaha dealer if the problem cannot belocated and corrected.EMU2681COverheat alertThis engine has an overheat-alert device. Ifthe engine temperature rises too high, thealert device will activate.● The engine speed will automatically de-crease to about 2000 r/min.● The overheat-alert indicator will light orblink.● The buzzer will sound (if equipped on thetiller handle, remote control box, or mainswitch panel).If the alert system has activated, stop the en-gine and check the cooling water inlets:● Check trim angle to be sure that the cool-ing water inlet is submerged.● Check the cooling water inlet for clogging.EMU26848Oil level alert and oil filter cloggingalertOil injection modelsThis engine has an oil level alert system. Ifthe oil level falls below the lower limit, thealert system will activate.Activation of alert device● Engine speed will automatically decreaseto about 2000 r/min.● The oil level-alert indicator will light orblink.ZMU01757ZMU04766ZMU03858
